As the 2024 UK General Election looms ever closer, Christian Wolmar and Mark Walker examine why both the Conservative and Labour Parties are tying themselves in knots over HS2 [2:40] and whether the reform of Greater Manchester's bus network is the precursor to a wave of changes across the country [10:28].  Still with buses, Christian interviews Alex Warner about the 'Great Scenic Bus Competition' which aims to make travel on this mode of transport much more fun [17:44].  Returning to controversial infrastructure schemes, Christian looks into the findings of the inquiry into Edinburgh Trams [30:38].  Finally, Christian asks whether the UK Prime Minister is miscalculating by waging a culture war on behalf of the motorist [36:59].